2.1 Overview
2.2 Viewing the Structure
2.3 Materials and Regions
2.4 Selecting Data Fields
2.5 Zooming and Panning
In this section, you will work with a 2D structure and learn how to control the view of the structure, how to display and hide materials and regions, how to zoom and pan the structure, and how to display the mesh and boundaries. You also will learn how to change the view of the structure, and to zoom and pan the structure.
To follow this section, download the following file by right-clicking and choosing Save Target As:
Figure 1 shows the new plot with device structure after the ldmos_des.tdr file has been loaded. This file is an output file of Sentaurus Device, representing a 2D LDMOS transistor structure and the corresponding solution variables stored on the final element mesh.
When loading a TDR file, Sentaurus Visual:
Two-dimensional or 3D plots are composed of materials that are distributed in regions. The Data Selection Panel provides a list of materials present in the structure and allows you to control how these materials are rendered.
The tabs in the Data Selection panel are:
In the Data Selection panel, the icons at the top of the Materials and Regions tabs control specifically how materials are rendered.
Icon | Description |
---|---|
Shows or hides the bulk. | |
Shows or hides the contour fields. | |
Shows or hides the mesh. | |
Shows or hides the borders. | |
Switches on or switches off translucency. |
Clicking the icon itself shows or hides the specified property for all materials or regions in the active plot. However, selecting the check box next to a material or region name shows or hides the specified property only for that material or region. For example, clearing the check box in the second column for the material "Oxide" would switch off contour fields only in the material Oxide (see Figure 3).
The lower part of the Data Selection panel is where you can control how data fields are displayed. Both scalar and vector plots can be displayed in Sentaurus Visual. To create a contour plot, select the required property to be plotted on the Scalars tab. The range and levels are set automatically, but they can be customized using the Range and Levels tabs.
To better understand how data-field plotting is controlled, here is an example with instructions to plot the impact ionization rate and the current flowlines at breakdown:
Figure 4 shows the impact ionization contour fields and current flowlines plotted near the LDMOS field oxide after magnification.
To take a closer look at significant details on a plot, there are various ways to zoom. On a selected plot, you can zoom using the mouse wheel, or by clicking the middle mouse button and moving to the top or bottom of the screen.
To pan, drag while holding the right mouse button.
The zoom tool magnifies a particular area of a plot. To select the zoom tool:
The reset tool restores the selected plot position and zoom level. It does not restore the rotation on 3D plots.
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